Lecture_2

26 amino acids and proteins amino acids protein

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26 Amino Acids and Proteins Amino Acids Protein Structure Amino Acids Trytophan Tyrosine Glycine Valine
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Proteins are versatile macromolecules that serve as building blocks
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28 Different functions of Proteins • Fibrous—keratin; hair • Structural—collagen ±bers; skin • Muscle—movement • Hormones—insulin; helps get sugar into cells • Immune system—antibodies, cytokines • Enzymes—catalyze chemical reactions * • Transport—carry molecules around body *
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30 Enzymes and Chemical Reactions Chemical Reaction: enzyme Sucrose Glucose + Fructose (Glucose—Fructose) Substrate Products
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31 Proteins involved in transport = Hemoglobin Made up of 2 alpha and 2 beta subunits
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32 Flow of Information in Cells DNA RNA Protein transcription translation FAT CAT ATE THE RAT FAT RAT ATE THE CAT _ATC ATA TET HER AT
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33 Flow of Information in Cells RNA DNA Proteins Nucleus Cell X X X Proteins RNA
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34
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35 Carbohydrates Sucrose Fructose Glucose Monosaccharide Disaccharide Monomers = monosaccharides Starch, glycogen, cellulose = polysaccharides
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Starch vs Glycogen 36
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37 Starch, glycogen and cellulose are all glucose polymers
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38 Starch = digestable
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39 Cellulose Chitin
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26 Amino Acids and Proteins Amino Acids Protein Structure...

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